Tunnel local assembly type reinforcing structure mounting system and monitoring and construction method

Abstract

The invention discloses a tunnel local assembly type reinforcing structure mounting system and a monitoring and construction method. The mounting system comprises a hoisting module, a rotary moving module and a mounting and temporary supporting module. The hoisting module comprises a supporting structure and an electric hoist, and the electric hoist is arranged on the supporting structure; the rotating and moving module comprises a bearing structure and a rotating and moving structure, the rotating and moving structure comprises two rotating arms, the two rotating arms are hinged and connected through a telescopic jack, one rotating arm is further hinged to the bearing structure and connected through a telescopic jack, and a segment can be placed on the other rotating arm; the mounting and temporary supporting module comprises a bearing portal and supporting trusses, a working platform is arranged at the top of the bearing portal, the supporting trusses are arranged on the two sides of the bearing portal, telescopic jacks connected with the supporting trusses are arranged on the bearing portal, and segments can be placed on the supporting trusses. The mounting system can be quickly assembled and formed and is used for construction of an assembly type structure, and the construction efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and in particular to a tunnel local assembled reinforcement structure installation system and a monitoring and construction method. Background Art

[0002] With the continuous advancement of transportation infrastructure construction, the number of highway tunnels in my country has increased rapidly. In the long-term use of these tunnels, due to the increase in service life and the influence of the natural environment, various structural damages and diseases have gradually occurred. In addition, during the long-term service, sudden disasters such as earthquakes, rainstorms, and explosions may also occur. If they are not repaired and reinforced in time, the service life of the tunnel will be reduced, endangering traffic safety and operational efficiency.

[0003] Prefabricated reinforcement structures have many advantages, such as high-precision prefabrication in factories, mechanized on-site assembly, minimizing human errors, improving structural quality and construction safety, etc. In addition, prefabricated structures can also achieve three-dimensional cross-operation, faster construction speed, and easier control of construction period compared to traditional construction methods. Therefore, for the treatment of operating tunnel diseases and disasters, prefabricated structural reinforcement has more outstanding advantages in terms of quality and timeliness.

[0004] However, prefabricated structures are heavy and large in size. The traditional construction method of manual labor and mechanical assistance is not only inefficient, but also difficult to ensure the quality of reinforcement and construction safety. The demand for special equipment is much higher than that for general structural construction. At present, there is an urgent need for equipment dedicated to the installation and construction of prefabricated structures to meet the urgent needs of tunnel reinforcement and maintenance. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention proposes a tunnel local assembled reinforcement structure installation system and a monitoring and construction method, which can be used for tunnel reinforcement and maintenance.

[0006] In order to achieve the above-mentioned object, the present invention is implemented through the following technical solutions: a tunnel local assembly type reinforcement structure installation system, comprising a hoisting module, a rotating movement module and an installation and temporary support module arranged in sequence along the tunnel direction;

[0007] The hoisting module includes a supporting structure and an electric hoist, and the electric hoist is arranged on the supporting structure;

[0008] The rotating and moving module comprises a bearing structure and a rotating and moving structure, wherein the rotating and moving structure comprises a rotating arm, wherein two rotating arms are hinged and connected via a telescopic jack, wherein one of the rotating arms is also hinged to the bearing structure and connected via a telescopic jack, and a pipe segment can be placed on the other rotating arm;

[0009] The installation and temporary support module includes a load-bearing portal and a support truss. A working platform is provided on the top of the load-bearing portal, and support trusses are provided on both sides. A telescopic jack connected to the support truss is provided on the load-bearing portal, and pipe segments can be placed on the support truss.

[0010] The pipe segment is lifted to the rotating arm of the rotating moving module by the electric hoist of the lifting module. Under the action of the telescopic jack, the rotating arm lifts the pipe segment upward to the side of the supporting truss. After the pipe segment is pushed onto the supporting truss, it is pushed to the inner wall of the tunnel under the action of the telescopic jack, and then the installation construction can be carried out.

[0011] Further, the support structure includes a horizontal beam, an inclined beam and a vertical beam, both ends of the horizontal beam are connected to the vertical beam through the inclined beam, both ends of the inclined beam are rotatably connected to the horizontal beam and the vertical beam respectively, and the electric hoist is arranged on the horizontal beam;

[0012] The vertical beam is provided with a telescopic jack connected with the oblique beam, and the oblique beam is provided with a telescopic jack connected with the horizontal beam.

[0013] The horizontal beams, inclined beams and vertical beams can rotate relative to each other, so as to be folded for easy transportation and storage. When in use, the parts rotate relative to each other under the action of the telescopic jack to form a support structure for lifting the pipe segments.

[0014] Furthermore, a cantilever is provided on the horizontal beam, and the electric hoist is movably arranged on the cantilever and can move along the axial direction of the cantilever.

[0015] The electric hoist moves on the cantilever, lifts the pipe segment and moves it to the rotating arm.

[0016] Furthermore, the bearing structure includes a horizontal beam 2 and a vertical beam 2. The horizontal beam 2 is a telescopic structure, and both ends are hinged with vertical beams 2 and connected by telescopic jacks. The rotating arm is hinged on the horizontal beam 2.

[0017] The horizontal beam 2 and the vertical beam 2 can rotate relative to each other when not in use for transportation and storage. When in use, they rotate relative to each other under the action of the telescopic jack to form a bearing structure.

[0018] Furthermore, a lifting jack is provided at the bottom of the load-bearing gantry.

[0019] The lifting jack is used to support the stability of the load-bearing gantry and can also be used to lift the entire segment.

[0020] Furthermore, the installation and temporary support module also includes a roughening mechanism, which includes an arc rail, a movable arm and a mounting seat, the arc rail is fixedly set on the supporting door frame, the two movable arms are hinged, one of the movable arms is movably set on the arc rail, the mounting seat is set on the other movable arm, and a plurality of roughening heads are arrayed on the mounting seat.

[0021] The movable arm moves on the arc track, and the two movable arms rotate relative to each other, so that the surface of the reinforced section can be roughened by the roughening head to facilitate the installation of the pipe segment.

[0022] Furthermore, the installation and temporary support module is provided with a displacement monitoring target, which can be identified by a DSE video monitoring system to monitor the structural displacement.

[0023] By monitoring structural displacement, displacement compensation can be carried out in a timely manner to ensure construction safety.

[0024] Furthermore, it also includes a moving mechanism, which includes an electric drive wheel, and the bottoms of the hoisting module, the rotating moving module and the installation and temporary support module are all provided with electric drive wheels.

[0025] The beneficial effect of the above-mentioned tunnel local prefabricated reinforcement structure installation system is that it can be used for the construction of prefabricated reinforcement structures in tunnels, and has the advantages of high efficiency, safety and controllable quality during the construction process.

[0026] A method for monitoring displacement of a tunnel local assembly type reinforcement structure installation system, using the above tunnel local assembly type reinforcement structure installation system, comprises the following steps:

[0027] Displacement calibration: Place a calibration plate on the monitoring section, identify the distance between the known points on the calibration plate and the number of pixels, and calculate the structural displacement corresponding to the unit pixel.

[0028] Image acquisition: During the segment installation process, the camera continuously captures images of the calibration points;

[0029] Identify the area division and use the part box containing the calibration points in the image as the object of subsequent displacement monitoring and analysis;

[0030] Feature point recognition: select the displacement monitoring point in the framed area, automatically match the monitoring point in all monitoring images, and analyze the coordinate position of the calibration point in the pixel array;

[0031] Displacement data analysis takes the first image as a reference, calculates the difference between the coordinate position in the subsequent images and the reference position, and realizes the displacement measurement.

[0032] The beneficial effect of the displacement monitoring method of the above-mentioned tunnel local assembled reinforcement structure installation system is that by monitoring the structural displacement, compensation can be made in time to ensure construction safety.

[0033] A construction method for a tunnel local assembled reinforcement structure installation system, using any one of the above tunnel local assembled reinforcement structure installation systems, comprises the following steps:

[0034] Transport the modules into the tunnel and install them, connecting them longitudinally to form a whole;

[0035] Roughening the surface concrete of the tunnel reinforcement section;

[0036] Transport the segments to the site, lift them with the electric hoist of the lifting module, place them on the rotating arm of the rotating and moving module, then lift and move the segments to the support trusses of the installation and temporary support module with the rotating arm of the rotating and moving module, and splice them on the support trusses;

[0037] The supporting trusses lift the segments to the inner wall of the tunnel and install the segments on the inner wall of the tunnel;

[0038] After the segments are installed, the modules are removed and transported out of the tunnel.

[0039] The beneficial effect of the construction method of the above-mentioned tunnel local prefabricated reinforcement structure installation system is that it can be used for the construction of prefabricated reinforcement structures in tunnels, which not only has high construction efficiency but also can ensure reinforcement quality and construction safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the specific implementation of the present invention, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0041] Figure 1 A schematic diagram of a tunnel local assembly reinforcement structure installation system provided by an embodiment of the present invention;

[0042] Figure 2 for Figure 1 A schematic diagram of a hoisting module of a tunnel local assembly reinforcement structure installation system is shown;

[0043] Figure 3 for Figure 1 A top view of a rotating and moving module of a tunnel local assembly type reinforcement structure installation system is shown;

[0044] Figure 4 for Figure 1 A top view of the installation and temporary support modules of a tunnel local assembled reinforcement structure installation system is shown;

[0045] Reference numerals:

[0046] 10-hoisting module, 11-support structure, 111-horizontal beam, 112-inclined beam, 113-vertical beam, 12-electric hoist, 13-cantilever;

[0047] 20-rotating and moving module, 21-bearing structure, 211-horizontal beam 2, 212-vertical beam 2, 22-rotating arm;

[0048] 30-installation and temporary support module, 31-load bearing gantry, 32-support truss, 33-roughening mechanism, 331-arc rail, 332-movable arm, 333-mounting seat. DETAILED DESCRIPTION

[0049] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0050] The present invention provides a tunnel local assembly type reinforcement structure installation system and monitoring and construction methods, please refer to Figures 1 to 4 The installation system includes a hoisting module, a rotating and moving module, and an installation and temporary support module which are sequentially arranged along the tunnel direction.

[0051] Specifically, the hoisting module 10 includes a supporting structure 11 and an electric hoist 12, and the electric hoist 12 is arranged on the supporting structure 11. The rotating and moving module 20 includes a bearing structure 21 and a rotating and moving structure, and the rotating and moving structure includes two rotating arms 22, which are hinged and connected by telescopic jacks, one of the rotating arms 22 is also hinged to the bearing structure 21 and connected to the bearing structure 21 by telescopic jacks, and the other rotating arm 22 can be placed on the pipe segment. The installation and temporary support module 30 includes a bearing gantry 31 and a supporting truss 32, the top of the bearing gantry 31 is provided with a working platform, and both sides are provided with supporting trusses 32, the bearing gantry 31 is provided with telescopic jacks connected to the supporting trusses 32, and the supporting trusses 32 can be placed on the pipe segment.

[0052] The pipe segment is hoisted to the rotating arm 22 of the rotating and moving module 20 by the electric hoist 12 of the lifting module 10. Under the action of the telescopic jack, the rotating arm 22 rotates and rises to lift the pipe segment to the side of the supporting truss 32. After the personnel on the working platform move the pipe segment to the supporting truss 32, under the action of the telescopic jack, the supporting truss 32 moves relative to the bearing portal 31, thereby pushing the pipe segment onto the inner wall of the tunnel, and then the installation construction of the pipe segment can be carried out.

[0053] Specifically, the support structure 11 includes a horizontal beam 111, an inclined beam 112 and a vertical beam 113. Both ends of the horizontal beam 111 are connected to the vertical beam 113 through the inclined beam 112. Both ends of the inclined beam 112 are rotatably connected to the horizontal beam 111 and the vertical beam 113, respectively. The electric hoist 12 is arranged on the horizontal beam 111. The vertical beam 113 is provided with a telescopic jack connected to the inclined beam 112. The inclined beam 112 is provided with a telescopic jack connected to the horizontal beam 111. The horizontal beam 111, the inclined beam 112 and the vertical beam 113 can be relatively rotated by the telescopic jack, so that the support structure 11 can be folded for easy transportation and storage. When in use, the telescopic jack rotates and unfolds each part relatively to form the support structure 11 for hanging pipe segments.

[0054] A cantilever 13 is also provided on the horizontal beam 111 , and the electric hoist 12 is movably provided on the cantilever 13 and can move along the axial direction of the cantilever 13 , so as to lift the pipe segment and move it to the rotating arm 22 .

[0055] The bearing structure 21 includes a horizontal beam 211 and a vertical beam 212. The horizontal beam 211 is a retractable two-stage plug-in structure, and the vertical beam 212 is hinged at both ends. The two ends are also connected to the vertical beam 212 through telescopic jacks, and the rotating arm 22 is hinged on the horizontal beam 211. When not in use, the horizontal beam 211 and the vertical beam 212 can rotate relative to each other under the action of the telescopic jack, so as to be folded for transportation and storage. When in use, they rotate relative to each other under the action of the telescopic jack to unfold, so as to form the bearing structure 21.

[0056] A lifting jack is provided at the bottom of the load-bearing gantry 31, which can be used to support the stability of the load-bearing gantry 31 and to lift the whole and the segment. Each support truss 32 is connected to the load-bearing gantry 31 through two telescopic jacks, and the two ends of the telescopic jack are rotatably connected to the load-bearing gantry 31 and the support truss 32 respectively, so that the segment can be lifted upward by the two telescopic jacks and the segment can be rotated by the telescopic length.

[0057] The installation and temporary support module 30 also includes a chiseling mechanism 33, which includes an arc rail 331, a movable arm 332 and a mounting seat 333. The arc rail 331 is fixedly arranged on the bearing gantry 31 and is an electric guide rail. Two movable arms 332 are hinged, one of which is rotatably arranged on a sliding seat in the arc rail 331, and the mounting seat 333 is arranged on the other movable arm 332. A plurality of chiseling heads are arranged in an array on the mounting seat 333. By moving the movable arm 332 on the arc rail 331 and rotating the two rotating arms 22 to adjust the position, the surface of the reinforcement section can be chiseled by the chiseling head to facilitate the installation of the pipe segment.

[0058] The installation and temporary support module 30 is also provided with displacement monitoring targets, which can be identified by the DSE video monitoring system during the construction process to monitor the structural displacement so as to make displacement compensation in time to ensure construction safety.

[0059] In addition, it also includes a moving mechanism, which includes electric drive wheels. The bottoms of the lifting module 10, the rotating moving module 20 and the installation and temporary support module 30 are all provided with electric drive wheels. The four wheels can move forward and backward through the same movement, and the four wheels (two groups) can rotate through the reverse movement, thereby achieving mutual fitting and connection between the modules.

[0060] The above-mentioned displacement monitoring method of a tunnel local prefabricated reinforcement structure installation system includes the following steps: displacement calibration, placing a calibration plate on the monitoring section, and calculating the structural displacement corresponding to the unit pixel by identifying the distance between the known points on the calibration plate and their pixel numbers.

[0061] Image acquisition: During the segment installation process, images of the calibration points are continuously captured by a distant camera.

[0062] Identify the area division and use the part box containing the calibration points in the image as the object of subsequent displacement monitoring and analysis, and exclude the interference of irrelevant areas.

[0063] Feature point recognition: select the displacement monitoring point in the framed area, automatically match the monitoring point in all monitoring images, and analyze the coordinate position of the calibration point in the pixel array.

[0064] Displacement data analysis takes the first image as a reference, calculates the difference between the coordinate position in the subsequent images and the reference position, and realizes the displacement measurement.

[0065] During the monitoring process, if the light rail structure sinks (<1cm), the lower lifting jack can be fine-tuned to achieve vertical displacement compensation. If there is a slight horizontal convergence (<1cm), the horizontal jack can be fine-tuned to achieve horizontal displacement compensation. If the structural displacement exceeds the above value, it is necessary to stop construction, check whether the bearing performance of the anchor structure meets the design requirements, and set a temporary support structure between the bearing portal and the supporting truss to improve the overall rigidity of the structure.

[0066] The construction method of the above-mentioned tunnel local assembly type reinforcement structure installation system comprises the following steps:

[0067] A small area of ​​the tunnel site is closed and the lower foundation is constructed. The interfaces of the reinforced structure and the original structure are roughened and rebar-planted, and the lower foundation steel cage is connected to ensure the mechanical properties of the interface between the two. After the lower treatment, interface treatment, and rebar planting are completed, the steel bar binding begins, and the upper prefabricated segment steel bar connection sleeve is reserved during binding, or the lower connection steel bar is reserved. After the steel bar binding and mold sealing are completed, the foundation concrete is poured, and the foundation concrete grade is consistent with the prefabricated structure.

[0068] After the foundation concrete strength reaches the standard, the traffic in the tunnel reinforcement area is interrupted, and the hoisting module, rotating and moving module and installation and temporary support module are transported to the work site, and the hoisting module is used to complete the hoisting and installation of the rotating and moving module and the installation and temporary support module. Each module is installed according to the aforementioned installation system and connected to form a whole through the longitudinal connecting plate.

[0069] The roughening mechanism of the installation and temporary support module is used to roughen the surface concrete of the reinforced section to ensure the interface performance between the reinforced structure and the original lining structure.

[0070] The segments are transported to the site, hoisted by the hoisting module, lifted by the rotating and moving module, and installed and temporarily supported by the installation and temporary support module. After the segment is positioned, the support bolts at the bottom of the segment are twisted out, and the foundation is fixed to the side wall by angle steel. At the same time, the connecting steel bars are welded on the angle steel, and the steel cage is tied to the bottom of the segment and the upper part of the foundation so that a connection is formed after subsequent grouting and backfilling.

[0071] After the construction of the reinforcement section is completed, the installation system is dismantled and transported out of the tunnel in the reverse order of installation, that is, different modules are separated, the rotating and moving modules are dismantled and transported out, the installation and temporary support modules are dismantled and transported out, and the lifting modules are folded and retracted and transported out by flatbed trucks.

[0072] The above-mentioned tunnel local prefabricated reinforcement structure installation system and monitoring and construction method can realize the rapid delivery and rapid assembly of the installation system, and the construction process is safe and controllable, which greatly improves the construction efficiency and construction safety of the prefabricated structure.

[0073] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A tunnel local assembly reinforcement structure installation system, characterized by: It includes a hoisting module, a rotating and moving module, and an installation and temporary support module which are sequentially arranged along the tunnel direction; The hoisting module includes a supporting structure and an electric hoist, and the electric hoist is arranged on the supporting structure; The rotating and moving module comprises a bearing structure and a rotating and moving structure, wherein the rotating and moving structure comprises a rotating arm, wherein two rotating arms are hinged and connected via a telescopic jack, wherein one of the rotating arms is also hinged to the bearing structure and connected via a telescopic jack, and a pipe segment can be placed on the other rotating arm; The installation and temporary support module includes a load-bearing portal and a support truss. A working platform is provided on the top of the load-bearing portal, and support trusses are provided on both sides. A telescopic jack connected to the support truss is provided on the load-bearing portal, and pipe segments can be placed on the support truss.

2. A tunnel local assembly reinforcement structure installation system according to claim 1, characterized in that: The support structure includes a horizontal beam, an inclined beam and a vertical beam, both ends of the horizontal beam are connected to the vertical beam through the inclined beam, both ends of the inclined beam are rotatably connected to the horizontal beam and the vertical beam respectively, and the electric hoist is arranged on the horizontal beam; The vertical beam is provided with a telescopic jack connected with the oblique beam, and the oblique beam is provided with a telescopic jack connected with the horizontal beam.

3. A tunnel local assembly reinforcement structure installation system according to claim 2, characterized in that: A cantilever is provided on the horizontal beam, and the electric hoist is movably arranged on the cantilever and can move along the axial direction of the cantilever.

4. A tunnel local assembly reinforcement structure installation system according to claim 1, characterized in that: The bearing structure comprises a second horizontal beam and a second vertical beam. The second horizontal beam is a telescopic structure, and both ends are hinged with a second vertical beam and connected by a telescopic jack. The rotating arm is hinged on the second horizontal beam.

5. The tunnel local assembly reinforcement structure installation system according to claim 1, characterized in that: A lifting jack is arranged at the bottom of the load-bearing door frame.

6. A tunnel local assembly reinforcement structure installation system according to claim 5, characterized in that: The installation and temporary support module also includes a chiseling mechanism, which includes an arc rail, a movable arm and a mounting seat. The arc rail is fixedly set on the supporting door frame, and the two movable arms are hinged, one of the movable arms is movably set on the arc rail, and the mounting seat is set on the other movable arm. A plurality of chiseling heads are arrayed on the mounting seat.

7. A tunnel local assembly reinforcement structure installation system according to claim 5, characterized in that: The installation and temporary support module is provided with a displacement monitoring target, which can be identified by the DSE video monitoring system to monitor the structural displacement.

8. The tunnel local assembly reinforcement structure installation system according to claim 1, characterized in that: It also includes a moving mechanism, which includes an electric drive wheel. The bottoms of the hoisting module, the rotating moving module and the installation and temporary support module are all provided with electric drive wheels.

9. A method for monitoring displacement of a tunnel local assembly type reinforcement structure installation system, using the tunnel local assembly type reinforcement structure installation system according to claim 7, characterized in that: The following steps are involved: Displacement calibration: Place a calibration plate on the monitoring section, identify the distance between the known points on the calibration plate and the number of pixels, and calculate the structural displacement corresponding to the unit pixel. Image acquisition: During the segment installation process, the camera continuously captures images of the calibration points; Identify the area division and use the part box containing the calibration points in the image as the object of subsequent displacement monitoring and analysis; Feature point recognition: select the displacement monitoring point in the framed area, automatically match the monitoring point in all monitoring images, and analyze the coordinate position of the calibration point in the pixel array; Displacement data analysis takes the first image as a reference, calculates the difference between the coordinate position in the subsequent images and the reference position, and realizes the displacement measurement.

10. A construction method for a tunnel local assembly type reinforcement structure installation system, using a tunnel local assembly type reinforcement structure installation system according to any one of claims 1 to 8, characterized in that: The following steps are involved: Transport the modules into the tunnel and install them, connecting them longitudinally to form a whole; Roughening the surface concrete of the tunnel reinforcement section; Transport the segments to the site, lift them with the electric hoist of the lifting module, place them on the rotating arm of the rotating and moving module, then lift and move the segments to the support trusses of the installation and temporary support module with the rotating arm of the rotating and moving module, and splice them on the support trusses; The supporting trusses lift the segments to the inner wall of the tunnel and install the segments on the inner wall of the tunnel; After the segments are installed, the modules are removed and transported out of the tunnel.

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